15240923 has 2 divisors, whose sum is σ = 15240924. Its totient is φ = 15240922.

The previous prime is 15240919. The next prime is 15240937. The reversal of 15240923 is 32904251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15240923 - 2² = 15240919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15240892 and 15240901.

It is not a weakly prime, because it can be changed into another prime (15240913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620461 + 7620462.

It is an arithmetic number, because the mean of its divisors is an integer number (7620462).

Almost surely, 2^15240923 is an apocalyptic number.

15240923 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240923 is an equidigital number, since it uses as much as digits as its factorization.

15240923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 15240923 is about 3903.9624742049. The cubic root of 15240923 is about 247.9345723605.

The spelling of 15240923 in words is "fifteen million, two hundred forty thousand, nine hundred twenty-three".